Security key
878972108
Tectonic Therapeutic, Inc. - Common Stock, $0.0001 par value per share (TECX)
CUSIP: 878972108
Q2 2024 13F Holders as of 30 Jun 2024
- Type / Class
- Equity / Common Stock, $0.0001 par value per share
- Shares outstanding
- 18,867,097
- Total 13F shares
- 5,345,881
- Share change
- +5,345,632
- Total reported value
- $88,045,301
- Price per share
- $16.47
- Number of holders
- 39
- Value change
- +$88,041,200
- Number of buys
- 38
Report period
Q2 2024
Institutions
39
Top holders
10
TECX full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2024
Tectonic Therapeutic, Inc. SEC filings
Tectonic Therapeutic, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 878972108
Recent filing periods:
Ownership snapshot
Top shareholders of TECX - Tectonic Therapeutic, Inc. - Common Stock, $0.0001 par value per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Lead holder
Braden M. Leonard
13D/G signal
—
Evidence rows
50
Latest as of
20 Jun 2024
3/4/5
13F
Highest disclosed value: $25,001,727
Showing first 8 of 50 holder rows.
Open remaining rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Braden M. Leonard |
3/4/5
Former 10% owner of AVROBIO
|
—
class O/S missing
|
$563,795
433,688 shares
|
— | 20 Jun 2024 |
| FMR LLC |
13F
Company
|
—
class O/S missing
|
$25,001,727
2,017,633 shares
|
— | 31 Mar 2024 |
| Atlas Venture Life Science Advisors, LLC |
13F
Company
|
—
class O/S missing
|
$5,812,968
4,541,381 shares
|
— | 31 Mar 2024 |
| BML Capital Management, LLC |
13F
Company
|
—
class O/S missing
|
$5,122,083
4,001,627 shares
|
— | 31 Mar 2024 |
| ADAR1 Capital Management, LLC |
13F
Company
|
—
class O/S missing
|
$5,062,217
3,954,857 shares
|
— | 31 Mar 2024 |
| Verition Fund Management LLC |
13F
Company
|
—
class O/S missing
|
$2,467,667
1,927,865 shares
|
— | 31 Mar 2024 |
| VANGUARD GROUP INC |
13F
Company
|
—
class O/S missing
|
$2,407,980
1,881,234 shares
|
— | 31 Mar 2024 |
| ACADIAN ASSET MANAGEMENT LLC |
13F
Company
|
—
class O/S missing
|
$1,582,000
1,236,738 shares
|
— | 31 Mar 2024 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q2 2024
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
39
Shares
5,345,881
Rows loaded
39
| Investor | Option | Weight % | Change % | Reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* Reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. An asterisk next to the price means the price is likely invalid.
Compare Q2 2024 vs Q4 2025 Across Filers
Q4 2025 holders
105
Q2 2024 holders
39
Holder diff
-66
| Investor | Q4 2025 Shares | Q2 2024 Shares | Share Diff | Share Chg % | Q4 2025 value | Q2 2024 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend